After an 18-year long investigation, police charged a man dubbed the "Hollywood Ripper" Thursday with the brutal stabbing of a Glenview woman in 1993.

Michael Gargiulo, 35, was charged with first degree murder for allegedly stabbing 18-year-old Tricia Pacaccio 12 times then posing her body on the front porch of her family home in Aug. 14, 1993.

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"Our detectives have been committed to this case and never once wavered in their belief that we would one day be able to bring justice to it," Cook County Sheriff Tom Dart said in a statement. "It is our hope that those who knew and loved Tricia can find some measure of peace as a result of this."

Police had found a small amount of Gargiulo's DNA in Pacaccio's fingernails, but not enough to convict him at the time of the incident.

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However, after CBS's "48 Hours" aired a special profile of the case in May, two people came forward claiming that Gargiulo had made statements to them in the 1990s confirming the murder.

The information was solidified Wednesday, and the Cook County's Sheriff's office delievered the charges soon after.

Gargiulo is already serving time in California awaiting trial for two homicides and an attempted murder, all of which involve stabbed victims.